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- W3165596216 abstract "• Ni catalysts are investigated for steam reforming of LDPE pyrolysis volatiles. • The metal-support interaction is studied over Ni catalysts with seven supports. • Distinct effects of support are observed on syngas yield and composition. • Weak metal-support interaction favors coke formation on Ni/CeO 2 and Ni/Y 2 O 3 . • Al 2 O 3 and MgO are found potential supports of Ni catalysts for this process. Syngas is a valuable intermediate for sustainable management of waste plastics, which can be converted to new monomers and chemicals. In this work, Ni catalysts were studied for syngas recovery via steam reforming of low-density polyethylene (LDPE) pyrolysis volatiles on various supports, such as Al 2 O 3 , MgO, CeO 2 , Y 2 O 3 , TiO 2 , SiO 2 and ZSM-5. Two commercial catalysts (NiAl and NiCaAl) were used for comparison. The supports exhibited distinct effects on the catalytic activity, selectivity and coke formation. Ni/CeO 2 , Ni/Y 2 O 3 , Ni/Al 2 O 3 , NiAl and NiCaAl showed high syngas yield but these catalysts were prone to coke formation. Ni/MgO, Ni/TiO 2 , Ni/SiO 2 and Ni/ZSM-5 were the least active. The obtained H 2 /CO ratios were correlated with CO selectivity, revealing the unique impacts of supports on syngas composition via water-gas shift reaction. Compared with commercial NiAl, our work demonstrated that the prepared Ni catalysts on Al 2 O 3 and MgO were suitable candidates for steam reforming of plastic pyrolysis volatiles." @default.
- W3165596216 created "2021-06-07" @default.
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- W3165596216 date "2021-07-01" @default.
- W3165596216 modified "2023-10-03" @default.
- W3165596216 title "Support effects on thermocatalytic pyrolysis-reforming of polyethylene over impregnated Ni catalysts" @default.
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- W3165596216 doi "https://doi.org/10.1016/j.apcata.2021.118222" @default.
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